William damerbl



W. DAMEREL.

SASH BALANCE.

Not 102,658.. Patented May 3, 1870.

aient dyltliw.

WILLIAM nAMEnnL,oF

BRooKLYN,Nnw Yoan Letters Patent No. 102,658, dated .May 3, 184'0.

IMPROVEMENT IN SASH-BALANCS. w

. The Schedulereferred to in these Letters Patent. and making part of Atho same.

To all whom,` it may concern: Be it known 'that I, WILLIAM Dix-Manen, of the city of Brooklyn, in the county of Kings and State ot' New York,l have invented'a new and useful Improvement in Hanging \lindow-Sashes,-and other articles; and I do hereby declare the' following to be a full, clear, andexact description thereof, which will enable those skilledin the art to make and use the same, reference being had to the accompanying drawing forming part of this speccation, in which drawiug- Figure l is an elevation ot my invention partly in section.

Figure 2 shows a portion of a wiudmv-casing with a. pulley-block inserted therein, showing also the metallic ribbon.

Figure 3 is a-view of one of the buckles detached.

Figure 4 shows a pulley-block containing rollers or sheaves, and also the saule block having its rollers re- -moved in ordcr to show the pins on which they are mounted, and which also serve to articulate or interlock the parts or divisions of. the pulley-block.

Figure 5 shows the inner faces of' the parts of the block.

Figure 6 is a modification of the pulley-block, wherein provision is made for handling it and insert- Ting it into a casing from either side.

Similar letters indicate corresponding parts.

Myvinvention relates to hanging window-sashes,

blinds, doors, and other articles which are raised and lowered by means of counter-balances, or by means of `eouuterbalancing weights.

v-My invention consists in forming a pulley-block for window-sashes of two parts, each of which shall be semi-cylindrical, and so construct-ed as to receive the .'oller or friction-surface over which thc cord or band' runs or moves, so that, when the parts are together, a complete cylinder is formed, whereby the block can -be readily screwed into the opening adapted to receive it. In order to readily operate such two-part block, I Hatten its ends so that it may be grasped by the hand or suitable tool. l y The letter A-,designates a window-traine; and B, a couuterbalanced window-sash, which is intended to mbve up and down in the' frame.-

` C C are weights suspended by the connections which extend from the edges of the sash, and pass over or through supports or pulley-blocks D D, fixed 4in the easing E of the frame.

The supports or blocks D are, in this' example of my invention., provided with sheaves or rollers it, but the rollers may bel dispensed with, and stationary wearing or anti-friction surfaces'be Ainclosed in the. supports or blocks D instead thereof.

I make the supports or pulley-blocks of a cylindrical or of' a slightly conical shape,v and form on their periphery screw-threads T, to enable me to screw them into round or slightly tapering holes made for them in the casing or frame where the supports or blocks are to be placed.

The supports or blocks are made in parts or segments G, whose inner sides or faces are provided respectively with studs H and sockets I near their edges, which tit into each other, and thereby articulate Aor interlock the parts G G, and said parts are also provided with pins J, whose points also enter sockets I, the object ot' the pins J being to provide spindles on which to mount the rollers or sheaves F, and also to 'articulate or -interlock the parts .or divisions of the pulley-block.

'lhe pins J are reduced near their ends, so as toform shoulders that conn the rollers F on one side, andthe edges of the sockets I, in which the points' of' said'pns enter, form shoulders 'that confin the rollers on their other sides.'- Y

The sockets I, for the pins J and studs H, are formed in the ends of other studs which project from the parts or divisions G.

The ends ot' the support or pulley-block are {lattened or beveled, to enable me to handle it with fa# cility when screwing or inserting it into its hole or receptacle- L.

WhenI make my support -or pulley-block of the same diamcter'throughout its length, itis desirable-to be able to h andle it from either end, so that it can be inserted into the hole L from either face of the case ing, and, in iig. 6, I have shown how to form the ends of th block so that 'the fiat-tened orbeveled ends M, or projecting lips, like N, cau be seized with the hand, or with a wrench, or other suitable tool.

' When the support or block is made slightly taper- .ing,"it is inserted into the hole LV by presenting its smaller end nrst, and in that case, I flatten or bevel it at its larger cud, as is shown in iig. 4.

The support or block is so placed in the casing as to be nsh therewith on the face side of the casing, or nearly so, projecting out from its inner side sufficiently ar to enable it to be seized by the hand l er by a tool and withdrawn or screwed-out 'when occasion requires, and also to suspend the weight at a suitable distance from the casing to prevent undue friction. e

It will be observed that by my invention the rollers or wearing-surfaces of the pulley-block or support, and the divisions or cheeks oi the block are each separate and independent, the former being held in place by placing the divisions G together, and the whole being secured and kept together andV in operative condition by the sides ot the hole into which the block is screwed.

Myinrention enables me. to use a round hole o1 forming,

receptacle, which can bc .made by a bit, thereby avoiding the expense of mortising a. square opening -n the casing,` as has been heretofore common when the pulley-block casing is composed of twolat parts.

I lay no claim to the devices constituting a. pulleyblock composed of a single plug or block. v

What 1 claim ns new, and desire to secure byLetters Patent, is-

1. The two-threaded semi-cylindrical blocks M, ln-

`closngtlle removable roller or friction-surface, and

when closed, n. perfect cylinder witbn con-.

tinued screw-thread, substantially .f1-s. nud, for the purpose described.

- 2. In a. pulleyblock thus constructed, the nttened ends M M, whereby the block may be readily grasped and operated, substantially as and' for the purpose described.

WM. DAMEREL:

Witnesses:

E. F. KASTENHUBEB, J. VAN Snrmvoonn. 

